Are there usage precautions?

주로 보습제와 각질 제거제로 사용되며, 피부를 진정시키고 염증을 감소시키는 데 도움을 줍니다. 또한 입욕 시 근육 통증 완화에 효과적입니다.

Ingredient Dictionary

MAGNESIUM SULFATE

1 products state the amountmedian 0.001%

Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.

Of the products containing it, 440 list it before the 1% line and 105 after it (usually 1% or less).

12 of 515 confirmed · likeliest to carry enough first · See all 515

Magnesium Sulfate is the inorganic salt that conforms to the formula:

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Reviewed by CIR: Safety Assessment of Magnesium Sulfate as Used in Cosmetics

More data — names, identifiers, properties, test records, literature

JCIA labelling name 硫酸Ｍｇ: 本品は、硫酸（＊）のマグネシウム塩であり、次の化学式で表される。

MAGNESIUM SULFATEINCI마그네슘설페이트Korean label name (MFDS standard)硫酸ＭｇJapanese labelling name

CAS No.chemical registry number: 10034-99-8
CAS No.chemical registry number: 18939-43-0
CAS No.chemical registry number: 7487-88-9
CAS No.chemical registry number: 7487-88-9; 10034-99-8 (heptahydrate) ; 18939-43-0
EC No.EU chemical inventory number: 231-298-2

Appearance: Dry Powder, Large Crystals, Liquid, Other Solid, CBI · White solid with a bitter, saline taste, [ICSC]
Odour: Odorless
Melting point: 1124 °C (decomposition) · Decomposes @ 1124 °C
Solubility: 710 mg/mL · SOL IN 2 PARTS H2O AT 20 °C /TRIHYDRATE/
Density: 2.66 g/cu cm · Efflorescent crystals or powder, bitter, saline, cooling taste, density: 1.67, pH 6-7, soluble in water (g/100 ml): 71 @ 20 °C, 91 @ 40 °C, slightly soluble in alcohol, its aqueous soln is neutral, it loses 4 H2O @ 70-80 °C, 5 H2O @ 100 °C, 6 H2O @ 120 °C, loses last molecule of H2O @ about 250 °C, rapidly reabsorbing water when exposed to moist air, on exposure to dry air at ordinary temperatures
Stability: FOLLOWING DATE OF MFR, MGSO4 INJECTIONS HAVE EXPIRATION DATE OF 18 MO TO 5 YR, DEPENDING ON MFR & PACKAGING /HEPTAHYDRATE/ · ON EXPOSURE TO DRY AIR AT ORDINARY TEMP IT LOSES ABOUT 1 H2O, AT 70-80 °C LOSES ABOUT 4H2O, AT 100 °C LOSES 5H2O, AT 120 °C LOSES 6 H2O, RAPIDLY REABSORBING WATER WHEN EXPOSED TO MOIST AIR, LOSES THE LAST MOL OF WATER AT ABOUT 250 °C /HEPTAHYDRATE/
pH: Neutral to litmus

Values measured on the substance itself, not a specification for a commercial raw material.

Source: PubChem